I can maybe understand the phosphate pads to control algae but is there really any use for an ammonia removal filter pad in a normal setup? Wouldn't that just starve your beneficial bacteria? Or do they intend that you use these in place of biological filtration? Anyone know how long they are supposed to last? I'm thinking maybe an emergency start up tank where there is no time to cycle but another tank can be cycling as you keep your fish in the ammonia scrubbed tank. Any experience or knowledge would be appreciated.